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Physical Optical Properties of 20CaO-(80-x)B2O3-xZnO Glass System |
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| รหัสดีโอไอ | |
| Creator | Ngarmjit JEARNKULPRASERT |
| Title | Physical Optical Properties of 20CaO-(80-x)B2O3-xZnO Glass System |
| Contributor | Onanong CHAEMLEK, Nuantip WANTANA, Jakrapong KAEWKHAO |
| Publisher | Metallurgy and Materials Science Research Institute, Chulalongkorn University |
| Publication Year | 2560 |
| Journal Title | Journal of Metals, Materials and Minerals |
| Journal Vol. | 27 |
| Journal No. | 2 |
| Page no. | 43-47 |
| Keyword | Glass, Physical properties, Optical properties, Optical band gap, Optical basicity, Polarizability |
| URL Website | http://ojs.materialsconnex.com/index.php/jmmm/index |
| Website title | Journal of Metals, Materials and Minerals |
| ISSN | 8576149 |
| Abstract | The calcium borate added with zinc oxide glass samples with chemical formula 20CaO-(80-x)B2O3- xZnO (where x=0, 5, 15 and 20 mol%) were prepared by the melt quenching technique. Glass samples were melted at 1,200C for 3 h and annealed at 500C for 3 h. Glasses density decreases, while molar volume increase with increment of ZnO concentration. Based on the transmission and absorption spectra obtained, the direct and indirect optical band gap, as well as the Urbach energy were calculated. The optical band gap expand with increasing of ZnO concentration that probably represents the NBOs located in glass network. Urbach energy increase with increasing of ZnO concentration due to the defects produced within the localized states. The optical basicity and polarizability of glass samples have been investigated in this work. |
